mirrors/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-11-25 02:33:36 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Consolidate arena_lookup and arena_lock into a single arena_get

Browse Source 
This seems to have been left behind as an artifact of some old changes
and can now be merged.  Verified that the only generated code change
on x86_64 is that of line numbers in asserts, like so:

@@ -27253,7 +27253,7 @@ Disassembly of section .text:
   416f09:      48 89 42 20             mov    %rax,0x20(%rdx)
   416f0d:      e9 7e f6 ff ff          jmpq   416590 <_int_free+0x230>
   416f12:      b9 3f 9f 4a 00          mov    $0x4a9f3f,%ecx
-  416f17:      ba d5 0f 00 00          mov    $0xfd5,%edx
+  416f17:      ba d6 0f 00 00          mov    $0xfd6,%edx
   416f1c:      be a8 9b 4a 00          mov    $0x4a9ba8,%esi
   416f21:      bf 6a 9c 4a 00          mov    $0x4a9c6a,%edi
   416f26:      e8 45 e8 ff ff          callq  415770 <__malloc_assert>
This commit is contained in:
Siddhesh Poyarekar 2015-02-18 11:06:05 +05:30
parent 8a35c3fe12
commit 94c5a52a84
2 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
ChangeLog
View File

@ -1,3 +1,8 @@
2015-02-18 Siddhesh Poyarekar <siddhesh@redhat.com>
* malloc/malloc.c (__libc_malloc): Consolidate arena_lookup and
arena_lock into a single arena_get.
2015-02-17 Carlos O'Donell <carlos@redhat.com>
* dl-reloc.c: Inlucde libc-internal.h.

3
malloc/malloc.c
View File

@ -2886,9 +2886,8 @@ __libc_malloc (size_t bytes)
if (__builtin_expect (hook != NULL, 0))
return (*hook)(bytes, RETURN_ADDRESS (0));
arena_lookup (ar_ptr);
arena_get (ar_ptr, bytes);
arena_lock (ar_ptr, bytes);
if (!ar_ptr)
return 0;